tools/testing/selftests/drivers/net/hw/hw_stats_l3_gre.sh

   1 #!/bin/bash
   2 # SPDX-License-Identifier: GPL-2.0
   3
   4 # Test L3 stats on IP-in-IP GRE tunnel without key.
   5
   6 # This test uses flat topology for IP tunneling tests. See ipip_lib.sh for more
   7 # details.
   8
   9 ALL_TESTS="
  10         ping_ipv4
  11         test_stats_rx
  12         test_stats_tx
  13 "
  14 NUM_NETIFS=6
  15 lib_dir=$(dirname "$0")
  16 source "$lib_dir"/../../../net/forwarding/lib.sh
  17 source "$lib_dir"/../../../net/forwarding/ipip_lib.sh
  18 source "$lib_dir"/../../../net/forwarding/tc_common.sh
  19
  20 setup_prepare()
  21 {
  22         h1=${NETIFS[p1]}
  23         ol1=${NETIFS[p2]}
  24
  25         ul1=${NETIFS[p3]}
  26         ul2=${NETIFS[p4]}
  27
  28         ol2=${NETIFS[p5]}
  29         h2=${NETIFS[p6]}
  30
  31         ol1mac=$(mac_get $ol1)
  32
  33         forwarding_enable
  34         vrf_prepare
  35         h1_create
  36         h2_create
  37         sw1_flat_create gre $ol1 $ul1
  38         sw2_flat_create gre $ol2 $ul2
  39         ip stats set dev g1a l3_stats on
  40         ip stats set dev g2a l3_stats on
  41 }
  42
  43 cleanup()
  44 {
  45         pre_cleanup
  46
  47         ip stats set dev g1a l3_stats off
  48         ip stats set dev g2a l3_stats off
  49
  50         sw2_flat_destroy $ol2 $ul2
  51         sw1_flat_destroy $ol1 $ul1
  52         h2_destroy
  53         h1_destroy
  54
  55         vrf_cleanup
  56         forwarding_restore
  57 }
  58
  59 ping_ipv4()
  60 {
  61         RET=0
  62
  63         ping_test $h1 192.0.2.18 " gre flat"
  64 }
  65
  66 send_packets_ipv4()
  67 {
  68         # Send 21 packets instead of 20, because the first one might trap and go
  69         # through the SW datapath, which might not bump the HW counter.
  70         $MZ $h1 -c 21 -d 20msec -p 100 \
  71             -a own -b $ol1mac -A 192.0.2.1 -B 192.0.2.18 \
  72             -q -t udp sp=54321,dp=12345
  73 }
  74
  75 test_stats()
  76 {
  77         local dev=$1; shift
  78         local dir=$1; shift
  79
  80         local a
  81         local b
  82
  83         RET=0
  84
  85         a=$(hw_stats_get l3_stats $dev $dir packets)
  86         send_packets_ipv4
  87         b=$(busywait "$TC_HIT_TIMEOUT" until_counter_is ">= $a + 20" \
  88                      hw_stats_get l3_stats $dev $dir packets)
  89         check_err $? "Traffic not reflected in the counter: $a -> $b"
  90
  91         log_test "Test $dir packets: $prot"
  92 }
  93
  94 test_stats_tx()
  95 {
  96         test_stats g1a tx
  97 }
  98
  99 test_stats_rx()
 100 {
 101         test_stats g2a rx
 102 }
 103
 104 trap cleanup EXIT
 105
 106 setup_prepare
 107 setup_wait
 108
 109 tests_run
 110
 111 exit $EXIT_STATUS